2728678330 has 64 divisors (see below), whose sum is σ = 6088545792. Its totient is φ = 859023360.

The previous prime is 2728678307. The next prime is 2728678349. The reversal of 2728678330 is 338768272.

It is a super-2 number, since 2×2728678330² = 14891370857223177800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20827 + ... + 76753.

It is an arithmetic number, because the mean of its divisors is an integer number (95133528).

Almost surely, 2^2728678330 is an apocalyptic number.

2728678330 is an abundant number, since it is smaller than the sum of its proper divisors (3359867462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2728678330 is a wasteful number, since it uses less digits than its factorization.

2728678330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55999.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 2728678330 is about 52236.7526747213. The cubic root of 2728678330 is about 1397.3894088452.

The spelling of 2728678330 in words is "two billion, seven hundred twenty-eight million, six hundred seventy-eight thousand, three hundred thirty".